dddd dnuk dod- dodd dodo doff doko dond donk donn dono dood doof dook doon doud douf douk doun dudd dudo dudu duff dufu duku dunk dunn duno duo- duon f--k ffff ffun fndd fndn fnuf fofo fond fono food foof fook foon foud foun fudd fuff fufu fukk fuko fuku fund funf funk kddd kddf kddk kdfn kdfo kdkd kdkk kdkn kdko kdnd kdnk kdnn kdno kdok kdun kfdn kfff kffk kffn kfnf kfnk kfnn kfno kfok kfon kfoo kfun kfuo kkdd kkdo kkfn kkkk kknd kknn kkno kknu kkon kkoo kkuu kndd kndf kndk kndn kndo kndu knfo knkk knnd knnk knod knok knon knou knud knuk kodk kodo kodu koff kofk kofo kofu kokf kokk kokn koko koku kond konk kono kook koon kooo koou kouu kudd kudo kudu kuff kufn kufo kukk kukn kuku kund kunk kuno kunu kuok kuon kuoo kuuk kuuu nddo nfff nfon nkok nnnn nodo nodu noko non- nonn nono nonu noo- nook noon nooo noun nudd nudo nuff nuku nunk nunn nuno nuon nuuk oddd odon odoo odou off- offo offu ofno okko okno okok okon okun ondo onno onod onon ooff ooku oooo ouff oun- ound ouu- udon udoo uduk udun ufuk ukko ukok ukon undo unfd unkn unko unno unon uofo uuno uuuu